Posted On: Nov 3, 2022

Effective immediately, AWS Lambda customers in AWS GovCloud (US) Regions can configure up to 10,240 MB of ephemeral storage for their Lambda functions, a 20x increase compared to the previous limit of 512 MB.

With this release, you can now control the amount of ephemeral storage a function uses for reading or writing data, enabling you to use Lambda functions for data intensive workloads such as ETL jobs, financial computations, and machine learning inferences. You can configure ephemeral storage (/tmp) between 512 MB and 10,240 MB using the AWS Management Console, AWS CLI, AWS Serverless Application Model (AWS SAM), AWS Cloud Development Kit (AWS CDK), AWS Lambda API, and AWS CloudFormation. With 10 GB container image support, 10 GB function memory, and now 10 GB of ephemeral function storage, you can bring larger files to /tmp, which makes it easier to run data intensive workloads.

For more information on ephemeral storage on Lambda, refer to this blog. For details on pricing for ephemeral storage configured above 512 MB, refer to AWS Lambda pricing. To get started, please visit Lambda developer guide.